What are the Mc David Runner Socks? The Mc David Active Runner Socks are active compression calf socks for use during run training. With ventilated stitching, targeted compression zones & Mc Davids patented h Dc Moisture Management Technology, the Active Runner Socks are designed to optimise blood circulation & keep the feet dry during use. How do they work? Anatomically designed compression zones promote blood circulation around the calf & foot to prevent lactate pooling which allow the user to utilise the sock during run training. With ventilated stitching around the toe cup, the Mc David Runner Sock keeps the area cool & dry as the anti-slip traction design on the base of the foot prevents the sock from slipping & causing blisters during use. Materiel: 40% Tactel/27% Polyamid/&8232;25% Timbrelle Care/8% Lycra Size guide Measure around leg from the centrepoint or thickest section of the calf muscle. S
- Mens shoe: 4
- 6, Womens shoe 5
- 7 (Calf circumference: 12.5
- 13") M
- Mens shoe: 6
- 8, Womens shoe 7
- 9 (Calf circumference: 13
- 14") L
- Mens shoe: 8
- 10, Womens shoe 9
- 11 (Calf circumference: 15
- 16") XL
- Mens shoe: 12
- 14, Womens shoe N/A (Calf circumference: 17
- 17.5") XXL
- Mens shoe: 14
- 16, Womens shoe N/A (Calf circumference: 17.5
- 18")